/*
 * @(#)ArcTest.java	1.5 98/06/29
  par PYL Juillet 2005 aj 0108
 
 javac AiletTest.java; open AiletTest.html 
 rm *.class;javac AiletTest.java kolor.java; java AiletTest
*/

import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.io.*;                      // Import input-output Library 


public class AiletTest extends Applet {
    AilControls controls;   // The controls 
    AilCanvas canvas;       // The drawing area
    public void init() {
	setLayout(new BorderLayout());
	canvas = new AilCanvas();
	add("Center", canvas);
	add("South", controls = new AilControls(canvas));
    }
   
    public void destroy() {
        remove(controls);
        remove(canvas);
    }

    public void start() {
	controls.setEnabled(true);
    }

    public void stop() {
	controls.setEnabled(false);
    }

    public void processEvent(AWTEvent e) {
        if (e.getID() == Event.WINDOW_DESTROY) {
            System.exit(0);
        }
    }

    public static void main(String args[]) {
	Frame f = new Frame("AiletTest");
	AiletTest	ailetTest = new AiletTest();

	ailetTest.init();
	ailetTest.start();
	
	f.add("Center", ailetTest);
	f.setSize(640, 480);
	f.show();
    }

    public String getAppletInfo() {
        return "Calcul d Ailette interactive test par PYL. Can be run \neither as a standalone application by typing 'java AiletTest' \nor as an applet in the AppletViewer.";
    }
}

class AilCanvas extends Canvas   {
    double		h = 500;
    double		k = 200;
	double		L = 0.05;
	double      a=0.0025;
	double      x[],theta[],Bi;
    Font	font;
 
	public void sauveparam()
    {   String texte = "#OK a poursuivre!";  
        try{
            FileOutputStream filename= new FileOutputStream("Ailette.dat");
            PrintStream ffile = new PrintStream(filename);
			for (int i = 0; i <= getBounds().width; i++) {
                 ffile.println(x[i] + " " + theta[i]);}
        }
        catch (IOException Ex)
        {
            System.out.println(Ex.getMessage());
        }
    } 
public void dro(Graphics g, double x1,double y1,double x2,double y2){
  int i1,i2,j1,j2;
  int rr,gg,bb;
  kolor kolorK;
  
  kolorK = new kolor();
  Rectangle r = getBounds();
  i1 = (int)(r.width*x1);
  i2 = (int)(r.width*x2);
  j1 = (int)(r.height/2 - (r.height/2.)*y1);
  j2 = (int)(r.height/2 - (r.height/2.)*y2); 
  g.drawLine(i1,j1,i2,j2);
}
    public void paint(Graphics g) {
	Rectangle r = getBounds();
	int hlines = r.height / 10;
	int vlines = r.width / 10;

    x =new double[r.width+1];
	theta=new double[r.width+1];

	g.setColor(Color.pink);
	for (int i = 0; i <= hlines; i++) {
	    g.drawLine(0, i * 10, r.width, i * 10);
	}
	for (int i = 0; i <= vlines-1; i++) {
	    g.drawLine(i * 10, 0, i * 10, r.height);
	}
	 
 
	
	
	
	Bi= (h*a/k); 
	
	x[0]=0;theta[0]=1;
	for (int i = 1; i <= r.width; i++) { 
	x[i]=i*1./r.width;
	theta[i]=ailette_sol.ture(x[i]*L,L,Bi,a);
	//System.out.println(x[i] + " " + theta[i]);
	
	g.setColor(Color.black);
	g.setFont(font);
	dro(g,x[i-1],theta[i-1],x[i],theta[i]); 
	
	g.setColor(kolor.code(theta[i]));	
	  
	g.drawLine(i,r.height/2+20,i,r.height/2+20+(int)(1000*a/L));
	}
	System.out.println("OK");
	g.setColor(Color.black);
	g.drawLine(0, r.height/2  , r.width, r.height/2  );
	g.drawLine(0, r.height  , r.width, r.height  );
   
 
	int sx = 10;
	int sy = r.height - 28;
	g.drawString("PYL 08" , r.width-52, 14);
	g.drawString("Distribution de Tempˇrature le long de l'Ailette", sx, sy-18);
	g.drawString("T(x)",100,10);
	g.drawString("Bi = (h*a/k) = " + Bi + "   L/(a/Sqrt(2 Bi))="+ (L/(a/Math.sqrt(2*Bi))), sx, sy);
	g.drawString("h = " + h, sx, sy + 14);
	g.drawString("k = " + k, sx+80, sy + 14);
	g.drawString("L = " + L, sx+160, sy + 14);
	g.drawString("a = " + a, sx+240, sy + 14);
    sauveparam();
    }

    public void redraw(double ph, double pk, double pL, double pa) {
	this.h = ph;
	this.k = pk;
	this.L = pL;
	this.a = pa;
	repaint();
    }
}

//////////////////////////////////////////


//////////////////////////////////////////


class AilControls extends Panel
                  implements ActionListener {
    TextField h;
    TextField k;
	TextField L;
	TextField a;
    AilCanvas canvas;

    public AilControls(AilCanvas canvas) {
	Button b = null;

	this.canvas = canvas; 
	add(h = new TextField(Double.toString(500), 8));
	add(k = new TextField("200", 8));
	add(L = new TextField("0.05", 8));
	add(a = new TextField("0.0025", 8));

	b = new Button("Calcul");
	b.addActionListener(this);
	add(b);
    }

    public void actionPerformed(ActionEvent ev) {
	String label = ev.getActionCommand();

	canvas.redraw(Double.parseDouble(h.getText().trim()),
	              Double.parseDouble(k.getText().trim()),
				  Double.parseDouble(L.getText().trim()),
	  		      Double.parseDouble(a.getText().trim()));
    }
}